JPH0411699B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a reinforced concrete wall construction method and building materials used in the construction method, and more specifically, to a reinforced concrete wall construction method and a building material used in the construction method. By making it possible to install formwork and pour concrete in sequence, and by dividing concrete pouring in this way, the pressure on the formwork can be reduced and the formwork can be supported by external supports or reinforcements. It can be assembled and supported extremely easily without any problems.
Furthermore, the arrangement of reinforcing bars can be done easily and accurately.

BACKGROUND ART Conventionally, when constructing a reinforced concrete wall, a formwork is supported from the outside by supports and erected, and after the formwork is roughly assembled from the floor to the ceiling height, concrete is poured. At that time, in order to maintain verticality by preventing the formwork from deforming due to the concrete's own weight and external pressure due to lateral pressure, working load, vibration, etc., and causing harmful amounts of distortion and deviation, use measures such as flap angles and metal chain supports. It is corrected or reinforced. However, according to the above-mentioned construction method, the weight of the flap angle is quite large and the time required to attach the metal fittings requires a great deal of time and effort, which is a major factor in increasing costs. The need for temporary equipment is also a factor in increasing costs. moreover,
Assembling formwork vertically and horizontally required considerable skill, and this also led to the problem of high labor costs.

Furthermore, in reinforced concrete construction, it is necessary to assemble reinforcing bars in the air within the formwork in advance, and at that time, it is highly important to arrange the reinforcing bars so that they are placed in the correct position within the concrete. This requires a lot of skill and also requires hardware such as spacers to ensure the spacing between the reinforcing bars and a predetermined cover, which also impedes labor-saving and cost reduction.

Purpose of the Invention The present invention aims to solve the above-mentioned problems of the conventional reinforced concrete wall construction method. Instead of assembling the formwork in advance from the floor level to the ceiling height, the formwork is installed by dividing it from the floor level. By repeating concrete pouring one after another, and by dividing concrete pouring in this way, the pressure on the formwork can be reduced and the formwork can be used for external support or reinforcement. It is extremely easy to assemble and support without using materials, and once the framework is constructed, horizontal and vertical positions can be automatically determined, and reinforcing bars can be placed easily and accurately. Therefore, it is an object of the present invention to provide an innovative reinforced concrete wall construction method that eliminates the need for technology, labor, temporary equipment, spacers, etc. required by conventional construction methods.

Furthermore, in order to enable the above-mentioned reinforced concrete wall construction method, there is provided a support material that supports the formwork from the inside, an improved separator that is supported by the support material and that is axially mounted between the face plates of the formwork, and the separator. The purpose of this invention is to provide a building material consisting of improved formwork supported by.

Structure of the Invention In order to achieve the above-mentioned object, the present invention has a framework of supporting members made of steel, and horizontally suspends the supporting members at a predetermined interval between the vertically framed supporting members. , attaching a part of the reinforcing bar to the support material, and attaching the separator with the part of the reinforcing bar being held in position by being locked to the support material;
Fix formwork on both sides of the separator, pour concrete into the assembled formwork supported by the separators, attach reinforcing bars to the support material, attach the separator, assemble the formwork, and assemble the assembled formwork. To provide a reinforced concrete wall construction method characterized by making it possible to pour concrete into the wall in sections from the lower part of the wall to be constructed.

Furthermore, the present invention provides, as a building material used in the above-mentioned construction method, a support material for the framework and for supporting the separator made of steel such as L-shaped steel, and a locking part that locks to the support material, and a formwork on both sides. To provide a building material comprising a fixed separator and a formwork formed by integrally fixing a panel made of hard vinyl chloride to an aluminum frame having mounting holes that can be detachably attached on both sides of the separator. It is something to do.

Embodiments Hereinafter, the present invention will be explained in detail with reference to embodiments shown in the drawings.

FIG. 1 shows a reinforced concrete building with reinforced concrete walls 1 installed using the construction method according to the present invention.
2 and 3 are the floor and ceiling made of reinforced concrete, respectively.

The wall 1 of the above-mentioned reinforced concrete building includes an L-shaped steel 4 serving as a support member, a separator 5 that is engaged with the L-shaped steel 4, a reinforcing bar 6 that is partially welded to the L-shaped steel 4 and held in position, and the separator 5 It consists of concrete 8 poured between formworks 7, which are assembled and supported by concrete.

The above-mentioned L-shaped steel 4 constitutes the frame material of the building, and is installed horizontally between the frame members erected at the four corners of the wall 1, and is used as a support material for the formwork 7. That is, L-shaped steels 4 (4A, 4B, 4C) serving as frame members are arranged on the four horizontal sides of the floor 2, the four vertical corners of the wall 1, and the four horizontal sides of the ceiling 3,
The joint ends of these L-shaped steels 4 are connected and fixed to form the framework of the frame, and on the wall 1, the L-shaped steels 4B installed at each corner are spaced at a predetermined distance in the vertical direction (1 m in this example). L, which will serve as the formwork holding material, with a gap)
Type steel 4D is suspended horizontally. At that time, 1
For two formworks, hold the top and bottom of the formwork 2
I am trying to attach the 4D L-shaped steel.

In addition, the above-mentioned framework material and formwork support material are not limited to L-shaped steel, but may be H-shaped steel, or may be flat plate or pipe-shaped. Further, these supporting members may be connected to each other by bolts and nuts, or by a connecting method such as hooking and locking.

As shown in the figure, the separator 5 that locks onto the L-shaped steel 4D has a locking portion 10 projecting downward in a U-shape at its center, and the locking portion 10 is attached to the vertical portion of the L-shaped steel 4D from above. By fitting the separator 5, the separator 5 is positioned and supported.
It is set so that the center (wall center) of the shaped steel 4D coincides with the center. The locking portion 10 may be provided by welding a U-shaped metal fitting as shown in FIG. 6, or may be provided by press working as shown in FIG. 6 or by bending as shown in FIG.

The separator 5 is assembled with P parts 11 on both sides that contact the face plate of the formwork 7 from the inside, and
Both ends are provided with threaded portions 12.

Conventionally, the formwork 7 assembled before concrete pouring was supported from the outside by supports, etc., but in the present invention, it is attached to the separator 5 that is positioned and supported by the L-shaped steel 4D, so to speak, from the inside side. It is designed to provide more support and assembly in place. As shown in FIG. 7, the formwork 7 has a hard vinyl chloride panel 16 integrally attached to an aluminum frame 15, and separator mounting holes are formed at predetermined intervals at the four corners and side frames of the aluminum frame 15. 17 is formed in advance. In this embodiment, the formwork 7 is vertically 1
The formwork 7 is assembled vertically in three stages to reach the ceiling height from the floor.

After concrete is placed with the L-shaped steel 4D and separator 5 described above, the reinforcing bars 6 embedded in the concrete have a diameter of 10 m/m, and vertical bars 6A and horizontal bars 6B.
A mesh of 200 mm pitch was pre-fabricated in a factory or the like. The ends of the reinforcing bars 6 manufactured in the net shape are attached to L-beams 4A to 4C, which are used as framework materials.
In addition, by attaching the central portion to the L-shaped steel 4D that is horizontally suspended on the wall, it can be easily positioned and placed.

Next, a construction method for constructing a reinforced concrete wall using each of the above-mentioned building materials will be sequentially explained with reference mainly to FIG. 1.

Digging is done to a predetermined depth from the GL, and foundation stone 20 is spread and leveled on the bottom of the excavation, and after compacting, waste concrete 21 is poured and smeared out.

The L-shaped steel 4A constituting the framework of the floor 2 is fixed onto the sacrificial concrete 21 with anchor bolts (not shown). To the L-shaped steel 4A connected and arranged in a rectangular shape on the four sides of the floor 2, the L-shaped steel 4B that constitutes the framework of the wall 1 is fixed and erected at the four corners of the connected L-shaped steel 4A. , and the L-shaped steels 4C arranged on the four sides of the ceiling 3 are connected to the upper end of this erected L-shaped steel 4B to construct a frame of a rectangular building.

Between the L-shaped steels 4B of the wall 1 built as the framework, L-shaped steels 4D for holding the formwork are placed at required intervals in the vertical direction. Fix it and hang it horizontally. That is, floor 2
Assuming that three formworks 7 are assembled in three upper and lower stages from the upper surface to the lower surface of the ceiling 3, six L-shaped steels 4D are fixed.

In addition, when constructing the frame using the L-shaped steel mentioned above, the vertical and horizontal sides should be drawn out, and the frames should be firmly fastened together.

The reinforcing bars 6 are double assembled on the waste concrete 21, and the base concrete 22 is poured with the floor framework L-shaped steel 4A embedded.

Reinforcing bars 6, which are partially welded to the lower formwork supporting L-shaped steel 4D installed on the wall and the frame L-shaped steel 4B on both sides, are attached in a net shape.

As shown in FIG. 4, the separator 5 is connected to the L-shaped steel 4D installed at the lowest stage and the L-shaped steel 4D installed above it at a certain interval, and the separator 5 is attached to the vertical part of the L-shaped steel 4D. Attach it by locking it.

By locking with the L-shaped steel 4D, formworks 7, 7 are assembled on both sides of the separator 5, which is positioned and supported, and the separator 5 is inserted into the separator mounting hole 17, and the tie 23 is tightened to the threaded portion 12. , the formwork 7 is tightened between the P pad 11 and the tie 23. In this way,
Both upper and lower sides of the formwork 7 are supported by separators 5 supported by L-shaped steels 4D, and are vertically supported, and the upper surfaces of the formworks 7, which are connected in the horizontal direction, are set horizontally.

Using the method described above, formwork 7 is placed in the lower 1/3 of the wall.
After assembling, concrete 8 is poured between the forms 7.

The above-mentioned steps ~ are repeated in the order of A, B, and C shown in the figure for the second and third stages, and the formwork is assembled → concrete is poured in three stages, and wall 1 is completed. Formed from floor to ceiling height.

(10) In the case of a one-story building, the ceiling formwork, and in the case of a two-story building, the formwork of the second floor slab is supported and assembled with pipe supports 25 in the same way as before, and then the reinforcing bars are assembled. Place concrete.

In the case of a two-story building, the framework with L-shaped steel is completed in advance, the concrete is poured as described above, and the walls of the second floor are then formed in the same way as the first floor. Note that the L-shaped steel for the framework on the second floor may be an extension of the L-shaped steel on the first floor, or may be added.

It goes without saying that the reinforced concrete wall construction method according to the present invention can be applied not only to the walls of houses as shown in the above embodiments, but also to columns and beams, and can be used in a wide range of applications other than house construction. For example, as shown in FIG. 8, it can be used to construct a fence 30, and in this case, it is cheaper and stronger than a block wall. Further, as shown in , the retaining wall 40 can be suitably employed when further constructing an L-shaped retaining wall 50 and an inverted T-shaped retaining wall 60 as shown in . Further, the separator may be fixed to the L-shaped steel in advance by welding, or the frame L-shaped steel may also be assembled at the factory.

Effects of the Invention As is clear from the above explanation, the reinforced concrete wall construction method according to the present invention uses supporting materials such as L-shaped steel for framing and formwork support, and
A separator that is positioned and held by the supporting material and a formwork that is supported and assembled by the separator are provided, and these building materials are used to construct a reinforced concrete wall, so that the following effects are achieved.

(a) By framing it in advance with support materials such as L-beam steel, it is possible to automatically create vertical and horizontal directions, and by simply attaching separators to these supports and attaching formwork to the separators, Formwork can be automatically pulled out vertically and horizontally for assembly. Therefore, it is not necessary to assemble the formwork from the floor to the ceiling height before concrete pouring, and it is possible to divide the formwork from the bottom and repeat the process of assembling the formwork and pouring concrete.

(b) By dividing the concrete and placing it as described above, the lateral pressure, self-weight, working load, etc. of the concrete are reduced, so there is less pressure acting on the formwork, and the formwork can be attached to the separator. It is sufficient to withstand concrete pouring just by supporting it. Therefore, the flap angles and reinforcing hardware required to support the formwork in conventional construction methods are no longer necessary, and labor and costs for temporary members can be significantly reduced.

(c) When assembling reinforcing bars, since they can be attached to the above-mentioned supports, accurate positioning is easy, no skills are required for reinforcing reinforcement, there is no need for assembly reinforcing bars or reinforcing bars, and the spacing between reinforcing bars can be reduced. The spacer that was conventionally used to ensure cover is no longer required. From these points as well, it is possible to reduce labor and cost.

(d) In wall construction methods, frame supports may be used in place of main reinforcing bars at corners and openings.

[Brief explanation of drawings]

Figure 1 is a schematic sectional view of a house constructed using the construction method according to the present invention, Figure 2 is a drawing showing the above-mentioned wall construction method, and Figure 3 is a schematic perspective view showing the assembled formwork before concrete pouring. , Figure 4 is a vertical sectional view of the wall when concrete is poured, Figure 5 is a horizontal sectional view of the wall when concrete is poured, Figure 6, , is a front view of the separator, and Figure 7, , is the formwork. Shown is the front view, is the bottom view, is the side view, and is the 8th
Figures 1 and 2 show modified examples constructed using this construction method. 1... Wall, 2... Floor, 3... Ceiling, 4, 4A,
4B, 4C, 4D... L-shaped steel, 5... Separator, 6... Reinforcement, 7... Formwork, 8... Concrete, 10... Locking part.

Claims (1)

[Scope of Claims] 1. A frame is made of supporting materials made of steel, and the supporting materials are horizontally hung horizontally at a predetermined interval between the vertically framed supporting materials. A formwork assembled by attaching a part of the reinforcing bars, attaching a separator with a part of the reinforcing bar being held in position by being locked to the supporting material, and fixing a formwork on both sides of the separator, and supported by the separator. It is possible to place concrete inside the walls, attach reinforcing bars to the above-mentioned supporting materials, attach separators, assemble the formwork, and pour concrete into the assembled formwork separately from the bottom of the wall to be constructed. A reinforced concrete wall construction method characterized by: 2. A support material made of steel for the framework and for supporting the separator, a separator provided with a locking part that locks onto the support material, and a formwork fixed to both sides, and a separator that can be attached and detached to both sides of the separator. A building material used in a reinforced concrete wall construction method, characterized by comprising a formwork formed by integrally fixing panels made of hard vinyl chloride to an aluminum frame having mounting holes for mounting.